CLAUSE USED IN TESTIMONIALS DUOLINGO APPLICATION: SYSTEMIC FUNCTIONAL LINGUISTICS ANALYSIS

The study examines Systemic Functional Linguistics (SFL) as a tool of examining text, and perhaps, text of any dimension as long as it falls within the grammatical organs of the clause. Systemic-functional linguistics is a linguistic framework for the analysis of grammatical and semantic information in text, with a potential role in automated text mining. Halliday’s insight seems prominent and upon which Systemic Functional Linguistics receives a global status that it has assumed today. In addition to that, the three metafunctions are characterized as its core operational concepts. The language system consists of three macro-functions known as meta-functional components: the interpersonal function, the ideational function, and the textual function, all of which make a contribution to the structure of a text. Although the clauses fall within the profile of the indicative and imperative, the study reveals that some of the structures are inverted in order to propagate the intended messages. The aims of this research are: (1) to find out the types of mood in testimonials Duolingo app, (2) to know the structure mood in testimonials Duolingo app, (3) to find out the types of topical theme in testimonials Duolingo app. In this research, the writer applies the theory of Systemic Functional Linguistics by M. K. Halliday. This research is qualitative research that focused on qualitative research by Creswell in and uses descriptive method by Denzin and Lincoln. The writer used documentation technique for collecting data. The writer used content analysis for technique of analysis. The writer found on the research that: First, there are three types of mood that found in testimonial Duolingo app, which are: Declarative Mood, Imperative Mood and Interrogative Mood. Second, the structure of Mood are the clause that found indicates as the form of Mood element and Residue Element. Third, the writer found two the types of topical theme in testimonial Duolingo app, which are: Unmarked Topical and Marked Topical, Marked topical theme is mostly appear in testimonial Duolingo app